JPS60502224A - Floating joint for plunger type pump - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] One-piece floating joint for plunger type pumps 9 doses of moxibustion The floating joint connects the plunger of the pump, that is, the drive shaft, to the cylinder coaxial with the drive shaft. Used in plunger-type pumps to connect to reciprocating driven screws. has been done. Floating joints prevent unintentional seal wear and fluid leakage when the pistons engage. Eccentric and angular misalignment between the piston drive mechanism and the piston that causes leaks Used to reduce impact. Conventionally, such a floating joint was included in the joint. 1 to maintain constant contact between the extension from the piston and the piston drive part. One or more spring members were included between the piston and the piston drive mechanism. fruit In some cases, such springs are used to prevent eccentric and angular tension between the screw drive mechanism and the piston. When a degree misalignment occurs, the degree of freedom regarding the orientation of the piston itself is restricted. Especially before The spring opposes the movement of the piston in a direction perpendicular to the axis of the piston drive mechanism. Guide the power. Furthermore, the axial force exerted by the spring member is non-uniform.

In this case, the spring member introduces a force perpendicular to the direction of movement of the piston and This increases the occurrence of inadvertent wear and inadvertent fluid leakage.

Moxibustion The present invention provides a method for moving pistons from a drive shaft in a manner that reduces the effects of angular and eccentric misalignment. To provide a spring-less floating piston coupling that transmits linear motion to a spring. Regarding this The fitting is a port that is received in a connector at the end of the piston drive shaft. Contains a loop-shaped member. The socket is a socket that is mounted on a shaft that faces perpendicularly to the longitudinal axis of the drive shaft. qualitatively parallel first and second inner walls; and a first inner wall adjacent the piston; (2) an aperture located along the longitudinal axis and substantially co-axial with the longitudinal axis -E; include. The aperture is formed by the movement of the screw intersecting the drive shaft and the second inner wall. The holes and It has dimensions to loosely receive the coupling means between it and the piston. In addition, the fittings This one-series includes a one-shear supported by a coupling means between the roll and the piston. The carrier is between the hole and the first inner wall and engages the pole and moves away from the piston. sliding engagement against the first inner wall around the opening due to relative movement of the drive shaft flatten the curve. With this configuration, the floating joint is either a piston or (1 ) allows for pivoting relative to the drive shaft by means of a pole that engages the end of the drive shaft; 2) The first inner wall can be moved in the direction crossing the drive shaft by a sliding one-wheel slider. This eliminates eccentric and angular misalignment between the piston and the drive shaft. Comply with and compensate for.

Breast blood painting left a The drawing shows the end of the drive shaft and the pin that can reciprocate within the sill of the plunger type pump. 1 shows a preferred embodiment of a floating piston joint according to the invention, which is provided between a piston and a piston. vinegar.

), thin hands In the drawings, the floating piston joint of the present invention is designated by the numeral 10. This fitting is , coupling the piston assembly 12 to the piston drive shaft or plunger 14; The reciprocating motion of the drive shaft is transmitted to the piston 121 via the joint IO.

The piston 12 is inserted into the syringe 16 by a piston bearing 18 and a piston seal 20. is guided to reciprocate in the longitudinal direction. The seal 20 is located between the piston and the inside It is recessed into the inlet of the syringe to engage the wall and provide a fluid-tight seal. Formed between the ring and the piston to prevent fluid from leaking from the cylinder. S Ring 16 (3) The cylinders are connected to check valves 24 and 26 that communicate with ports 28 and 30, respectively. It is formed within a housing 22 that supports the ends of the rod 16. The liquid is a piss When the ton is drawn from the shilling, it is drawn into the shilling through the check valve. Ru. The liquid flows through the actuation of the check valve 26 during movement of the piston toward the sill end wall. More is drained from the shilling.

The housing 22 is connected to a housing 34 that supports the drive shaft 14 by a connecting plate 32. It has been investigated. A connecting plate 32 extends within the housing 34 and connects the piston 12. Supports a bearing 18 surrounding and coaxial with the longitudinal axis 36 of the drive shaft 14 The piston 12 includes an annular extension within the sill 16 aligned with the axis 36. Move back and forth.

The drive shaft 14 is reciprocally interlocked within the housing 34 via an axial bearing 38. is supported by A balance mechanism for reciprocating the drive shaft 14 is not shown. The drive motor and its rotational output are converted into linear reciprocating motion of the drive shaft. including conventional structures such as associated means for doing so.

As shown, the springless floating joint according to the present invention has a ball 40 or other hole-like part. the member has similar anterior and posterior surfaces that are hemispherical surfaces having a common center; Ru. The ball 40 is made of a hard metal material and is connected to the exposed end of the shaft 12 by an extension 42. It's so childish that it's connected to the section. The extension portion 42 is coaxial with the piston 12. It has a cross-sectional area with a slightly reduced diameter relative to the piston. Extension part 42 The end of the core is aligned with the axis of the extension and the piston in the center of the ball 40. It is soldered onto the ball. As shown, a ball 40 is formed at the end of the drive shaft 14. It fits inside the holder 44. Preferably, the song I is the drive shaft 1. first and second sides perpendicular to the longitudinal axis 36 of 4 and qualitatively parallel to the plane M1; It takes the form of a channel with walls 46,48. The side wall 46 is provided on the drive shaft 14. loosely receives an extension 42 with a ball 40 in the channel coaxially with the drive shaft. The site slot defined by the aperture of -7 and 50 is included.

Because of this configuration, the ball 40 is aligned with the axis of the drive shaft when it moves relative to the piston. li! fixed to the side wall 48 coaxial with 36! 1! to engage with the metal hotane 52. It is adapted to. The contact between the ball 40 and the button 52 is a point contact, and the contact between the ball 40 and the button 52 is a point contact. 4 and the spherical axis on the button to compensate for the angular misalignment between the piston 12 Compatible with the piston's pivot Ikll interlock with the receiver.

In addition, the floating joint includes an eleven-shaped onesie 54 having a circular central hole 56. child The washer is supported on the extension 42 between the ball 40 and the sidewall 46. This way This arrangement allows one side of the one-shaft to have a smooth sliding contact with the side wall 46. , the opposite annular portion of the one-shaft engages the ball 40 around said central hole. Ru. This allows the piston to compensate for eccentric misalignment between the drive shaft 14 and the piston 12. in a direction transverse to the axis 36 with a washer sliding on the side wall 46-, IT, to compensate. It enables linking to.

Preferably, the channel defining the socket 44, the button 52, the bulb 40 and the The joint 10, including the shaft 54, has a shaft for relative axial interlocking between the ball and the button. Only a very real axis crosses axis 36, i.e. to compensate for eccentric misalignment. Make sure that there is sufficient clearance to accommodate the movement of the piston in the direction. on the other hand, the piston is aligned with axis 3 to compensate for angular misalignment. 6. The front and rear surfaces of the hole-shaped member are hemispherical and have a common center. In the illustrated preferred embodiment, the desired clearance is between the ball 40 and the button. 52 and the point of contact with the ball and the 7. The distance between the point of contact with the shaft 54 remains constant. Therefore, what is the angular relationship between the piston and the drive shaft? stay constant.

8K1 Stomach Copy and translation of amendment) Submission (Article 184-7, Paragraph 1 of the Patent Act) May 1984 138 Mr. Manabu Shiga, Commissioner of the Patent Office 1. International publication order PCT/US841014532, title of invention Floating joint for plunger type pump sump 3. Patent applicant Nationality: United States of America 4 agents Address: 4-17-Katomo Building, Toranomon-Gocho Ll, Minato-ku, Tokyo 105 Phone: (434) 0887 (Main) Name (7002) Patent Attorney Nobuyuki Matsunaga 5. Supplementary [T= Date of submission of document] February 1985 611 6. Edges of attached documents Copy and translation of supplementary letter) 1 copy Engraving: (no changes to the content) Supplemented Claims 7 A shaft supported so as to be able to reciprocate in the longitudinal direction by bearing means and a guide means a screw supported longitudinally for reciprocating interlocking in a cylinder substantially aligned with the axis; a springless float between said shaft and said piston in a pump comprising a shaft and said piston; a joint connected to the end of the piston 111i opposite to the shilling; a spherical member having a hemispherical surface facing toward and away from the piston; , formed at an end of the shaft for receiving the spherical member, and extending along the longitudinal axis of the shaft. having first and second substantially parallel inner walls perpendicularly opposed to the line; provided on the first outermost side wall closest to the stone and with the longitudinal axis of said shaft; a front end substantially on the same axis and adjacent to the connection of said method to said piston; Pivoting and lateral movement of the piston relative to the shaft is achieved by loosely accepting the a socket for viewing the opening 1 having dimensions adapted to directional movement; and a socket for said spherical member. about the piston adjacent to the connection to the piston and disposed between a hemispherical surface of the spherical member facing and a first wall of the socketft; When the piston is pulled from the shilling by the pulling movement of the shaft, the piston The spherical member and the shaft are free to pivot and lateral movement between the stone and the shaft. and a first wall of the floating joint.

8. Furthermore, a coaxial extension member between the piston and the spherical member, and a coaxial extension member between the piston and the spherical member; defining means for connecting a shaped member to said piston, said elongate member being connected to said piston; a front end extending through the first wall of the socket and between the support member and the first wall of the shaft; 8. A floating joint according to claim 7, characterized by said support member.

9. The elongated member is cylindrical in shape and has a cross section smaller than the diameter of the spherical member, and , the support member has a circular central 78 surface along which the elongated member extends. 4 (4) a hole, thereby allowing the support member to slide on one side of the support member or into the first wall of the +iiij axis; contacting and an annular portion on the other force side engaging the spherical member around the central opening; Floating joint according to claim 8.

10 The outgoing side wall accommodates pivoting and lateral movement of the piston relative to the axis. A spacer is provided in the socket of the shaft to change the relative movement of the spherical member. 9. The floating joint according to claim 8, wherein the floating joint is

11. According to claim 10, the hemispherical surfaces of the ball-shaped member have a common center. f′! Fittings.

12 A shaft and a support supported by a bearing means in the axial direction so as to be reciprocally interlocked in the longitudinal direction. Retaining means permit longitudinal reciprocating movement within the sill substantially aligned with said axis. a plunger-type pump comprising a supported piston, the shaft and the piston; a springless floating joint between the ball and the screw, the axis of which is attaching said piston to said method in center alignment, said piston extending from said piston; a coaxial extension provided at one end of the shaft adjacent to the piston; a channel having substantially parallel first and second sidewalls perpendicular to the longitudinal axis; between coaxial ends of said shaft, defined by -1. provided on the first outermost side wall and between the first and second side walls during reciprocating movement of the shaft; The extension of the piston is loosely received along with the ball in the channel to transmit the force. a channel including a side slot for inserting the pin into the shaft; Relative movement away from the piston allows pivoting between the piston and the piston. the front side for sliding engagement with the first side wall about the side slot; a circular central hole supported by the extension between the piston and the shaft; A beautiful bearing.

A floating joint equipped with a shaft.

Procedural amendment (formality) %formula% ■、Small incident display International application number PCT/US 8410l 4532, title of the invention Floating joint for plunger type pump 3. Person who makes corrections Relationship to the case: Applicant Nationality: United States of America 4. Agent Address: Katomo Building, 3-4-17 Toranomon, Minato-ku, Tokyo 105 Phone (434) No. 0887 (Main) Name (7002) Patent Attorney Nobuyuki Matsunaga 5. Attachment 11 of the correction order 6. Subject of correction Copy and translation of the written amendment submitted on May 13, 1985) Letter of submission and amendment scope of claims made 7. Contents of correction (1) Copy and translation of the written amendment dated May 13, 1985) Written amendment to the letter of submission of the submitted form The section on submission date H is amended as shown in the attached sheet.

(2) Amend the amended scope of claims as shown in the attached sheet.

(No change in content) 8. List of attached documents (1) Copy and translation of the corrected amendment) 1 copy of the submission form (2) Supplementary letter has been sent Scope of claims (no change in content) 1 international search report

Claims (1)

[Claims] 1 Shaft and support supported by bearing means so as to be able to reciprocate in the longitudinal direction and/or longitudinally within the sill substantially aligned with said axis by coaxial sealing means. I) A pump including a piston supported so as to be able to reciprocate in a direction; a springless floating joint between the piston and the piston, the springless floating joint being spaced apart from the shilling; connected to the end of the piston and having a similar hemispherical surface facing said piston and the shaft; a pole-shaped member provided at one end of the shaft to receive the ball and extend along the length of the shaft; substantially parallel first and second inner surfaces substantially perpendicularly opposed to the L direction axis; a first inner wall adjacent the wall and the piston and in line with the longitudinal axis; interlocking of pistons that are qualitatively on the same axis 1- and intersect with said axis; the ball to accommodate the pivoting movement of the piston to the ball that rests on the inside wall of the an opening [1] having dimensions to loosely receive the connecting means between the screw and the screw; socket 7 + and the hole J around the means for connecting the hole to the piston. [and the screws l-', ', which are located between the ball and the EtS L The relative connection of said shaft which engages the inner wall of the shaft and leaves the piston The movement causes a sliding engagement with the first inner wall around the Ukitsuigoshi including Ruwansha. 2. Furthermore, the hole ← is installed l') from the piston to the same hole. an extension defining one stage connecting the door to the screw; The elongated portion is located on the first inner side 9 of the one-piece opening II. and extending through the hole and between the hole and the first inner wall. A floating joint according to claim 1, which supports a shaft. :3 + ii + Extended L (is the axis line? Align with the center of the hole and , the extension Lyi: is smaller than the transverse Ln1 or the diameter of the hole, and , the one-shaft includes a circular central hole for receiving the extension, thereby One side of the washer smoothes sliding contact against the first inner wall, and the washer an annular portion opposite to engages the ball about the central hole; Floating joint described in Section 2. 4. The inner wall is of a size sufficiently small to accommodate movement of the piston across the axis of the shaft. so that a slight clearance exists between the hole, the inner wall, and the one-shaft. and spaced apart from said ball and one shoe. Floating joint as described. 5. The hemispherical surfaces of the hole-shaped member are characterized by a common center. floating joint. 6 A shaft and a support supported in a reciprocating rhythmic manner in the longitudinal direction by means of an axial bearing means. retaining means and/or a substantially coaxial seal - substantially aligned with said axis by one stage; reciprocating d (longitudinal in the cylinder) in the J direction (supported by the dynamic r1f function and connecting with the j-piston Plunger-type pumps, including spring-free between the shaft and the piston It is a floating joint and is attached to the said body with the axis of the ball aligned with the center of the ball. -1 a coaxial extension extending from said piston; and 7 adjacent said piston; The end of the shaft is provided at substantially right angles to the longitudinal axis of said shaft. t: a channel having medium-b first and second side walls; Relative interlocking towards the piston 8! , = engages said second side wall and said shaft Insert the njj mark so that the relative interlocking paste away from the piston touches the first inner wall. Loosely engage the extension with the bead in the receiver and the ball, one of the shafts 1) Piste] / or ←) # Around the site slot by phase & 4ii 4 movement sliding (8) to t, + on the first side wall at a circular shape supported on the extension between the first side wall and the wall to smooth the and a flat retaining washer having a central hole. (1) Machito Ba GO-502224 (2)